TI MSP430G2444IRHA40T

The MSP430 ultra-low-power microcontroller series consists of several devices, each with different peripheral sets tailored for various applications. The combination of its architecture and five low-power modes is specifically optimized to extend battery life in portable measurement applications. It features a powerful 16-bit RISC CPU, 16-bit registers, and a constant generator that helps achieve maximum coding efficiency. The digitally controlled oscillator (DCO) enables the device to wake up from a low-power mode to an active mode in less than 1µs.

The MSP430G2x44 series is an ultra-low-power mixed-signal microcontroller. It has two built-in 16-bit timers, one universal serial communication interface (USCI), a 10-bit analog-to-digital converter (ADC) with an integrated reference and data transfer controller (DTC), and 32 input/output (I/O) pins.

Typical applications include sensor systems, which are responsible for capturing analog signals, converting them into digital values, and processing the data for display or transmission to a host system. An independent radio frequency (RF) sensor front-end is also an application area.

• Supply voltage range: 1.8V to 3.6V
• Ultra-low power consumption
  • Active mode: 270μA (at 1MHz, 2.2V)
  • Standby mode: 1μA
  • Off mode (RAM retention): 0.1μA
• Ultra-fast wake-up from standby in less than 1μs
• 16-bit RISC architecture, 62.5ns instruction cycle time
• Basic clock module configurations
  • Internal frequency up to 16MHz with four calibrated frequencies
  • Internal ultra-low-power LF oscillator
  • 32kHz crystal
  • HF crystal resonator up to 16MHz
  • External digital clock source
  • External resistor
• 16-bit Timer_A with three capture/compare registers
• 16-bit Timer_B with three capture/compare registers
• USCI
  • Enhanced UART with automatic baud rate detection (LIN)
  • IrDA encoder and decoder
  • SPI
  • I²C
• 10-bit 200ksps ADC with internal reference, sample-and-hold, auto-scan, and data transfer controller
• Brown-out detector
• In-system serial programming, no external programming voltage required, programmable code protection via security fuse
• Bootstrap loader (BSL)
• On-chip emulation module

• Sensor systems
• RF sensor front-end